Displays degree Centigrade and Fahrenheit: the stick-on digital temperature strip measures both Fahrenheit and Celsius. The thermometer strip has a range of 64°F to 93°F and 18°C to 34°C. The large numbers are in Fahrenheit and the small numbers are in Celsius. Easy to install: simply pull off the backing to reveal the adhesive and apply to the front of your fish tank, aquarium, jar, or fermentation bucket. Remove the transparent protective film before use. One-time use only. Ideal for quickly monitoring the temperature of your fish tank, wine jar, or similar container. Regular size: the adhesive crystal strip thermometer is sized to fit most surfaces, suitable for fermenting, brewing, wine, beer, and aquariums. Wide temperature range: measures from 64°F to 93°F with 1°F accuracy. After 2 to 5 minutes, the color change will indicate the exact temperature. Keep away from direct heat sources. You will receive: 36 digital temperature stickers. Sufficient quantity for long-term use in various applications. Suitable for monitoring the temperature of fish tanks, aquariums, DIY drinks, wine barrels, and other pet tanks. Color: Black Material: PET Size: 13 x 1.8 cm Package Contents: 36 x Digital Temperature Sticker Note: Light and screen display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.